Index: misc/collapse.js
===================================================================
--- misc/collapse.js	(revision 5)
+++ misc/collapse.js	(working copy)
@@ -5,8 +5,8 @@
  */
 Drupal.toggleFieldset = function(fieldset) {
   if ($(fieldset).is('.collapsed')) {
-    var content = $('> div', fieldset);
     $(fieldset).removeClass('collapsed');
+    var content = $('> div', fieldset).hide();
     content.slideDown( {
       duration: 'fast',
       easing: 'linear',